| 单词 | fraction |
| 释义 | fraction /frak"sheuhn/, n. 1. Math. a. a number usually expressed in the form a/b. b. a ratio of algebraic quantities similarly expressed. 2. Chem. (in a volatile mixture) a component whose range of boiling point temperatures allows it to be separated from other components by fractionation. 3. a part as distinct from the whole of anything; portion or section: The meeting started with a fraction of us present. 4. a very small part or segment of anything; minute portion: Only a fraction of the work was completed on time. 5. a very small amount; a little bit: It was only a fraction away from completion. 6. a piece broken off; fragment or bit. 7. the act of breaking. 8. Eccles. (in a Eucharistic service) the breaking of the Host. v.t. , v.i. 9. to divide or break into fractions, sections, factions, etc.: Dissension threatens to fraction the powerful union. [1350-1400; ME fraccioun < LL fraction- (s. of fractio) a breaking (in pieces), equiv. to L fract(us) (ptp. of frangere to BREAK) + -ion- -ION] Syn. 3, 6. See part. |
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